Public utilities may be located in any zone as a conditional use where such uses are not specifically permitted by this chapter. However, before a building permit or Certificate of Occupancy shall be issued, application shall be made in accordance with law, which after public hearing and review of such considerations as traffic, lot size, yard areas, parking spaces, use of the building related to the immediate neighborhood, buffer areas and the number of employees or users of the property, may authorize the issuance of such permit if in the judgment of the Board it will not be detrimental to the health, safety and general welfare of the City and is reasonably necessary for the convenience of the City.